Finishing machine



Sept. 27,1927. G. GOEQU FINISHING momma 2 Sheets-Sheet l Filed Nov. 13. 1922 F1 .1.

, 1,643,556 S p 1927' I G. GODDU FINISHING MACHINE Filed Nov. 13, 1922 2 Sheets-$heet 2 Patented Sept. 27, 1927.

V UNITED STATES PATENT OFFICE.

GEORGE GODIDU, (IF WINCHESTER, MASSACHUSETTS, ASSIG-NOR TO UNITED SHOE MACHINERY CORPOBA'IIGN, F PATTERSON, NEYJ JERSEY, A CORPORATION OF NEW JERSEY.

FINISHING MACHINE.

Application filed November 13, 1822.

This invention relates to finishing machines and is herein shown as embodied in a machine for burnishing the edges of heels of boots and shoes.

Machines for performing finishing operations on heels usually employ rotary tools which have their contours shaped to fit the particular heels to be burnished. The heels of shoes of different styles, particularly those for womens shoes, differ greatly in height and form and some are very abruptly curved while other styles have an almost flat periphery. As a consequence many different tools have been required properly to finish all these styles and shapes.

Accordingly. an object of this invention is to provide an improved tool which is adapted for finishing a variety of heels having widely differing shapes or degrees of curvature. In the iilustrated machine, in accordance with an important feature of the invention, this object is attained by providing one set of individual burnishing elements adapted to treat all shapes of heels, different templets being inserted in the tool axis to change the configuration of the tool as a whole so that the contour of the burnishing surface will correspond to the heels. As shown, the tool comprises a holder, a series of individual rubbing elements pivoted to the holder, and a templet engaging the pivotally mounted elements and constructed and arranged to cause the tool as a whole to contormto a contour determined by said templet. Thus one set of burnishing elements suffices for many different shapes of heels and the precise contour desired is produced by selecting a templet of the necessary shape to control the relative positions of said burnishing elements. On account of minor irregularities in the work, it is desirable that the burnishing surface be slightly yieldable to search out and find these irregularities. In accordance with a further feature of the invention, the illustra ted burnishing elements, while conformiug as a whole to the desired contour, have lost motion connections with the controlling templets so that they can be moved inwardly by pressure of the work against the action of centrifugal force. In view of the varying heights of heels, it is also desirable to vary the length of the burnishing surface to cor espond. Acc rdingly, another fea Serial No. 600,491.

justably held within the tool so that any.

one teniplet, by occupying different positions in the same tool, is capable of varying the predetermined number of elements in action and so varying the extent of the active surface. Furthermore, this variation may occur during operation of the tool.

The invention provides also, as a further feature, novel means for heating the tool,

which is constructed and arranged to maintain the heating element in heat'conducting relation to the tool as the latter rotates and osciliates along its axis of rotation.

Other features and advantages of the invention will. appear from a consideration of the detail specification considered with the accompanying drawings in which,

Fig. 1 is a front elevation of a portion of a burnishing machine provided with the improved tool;

Fig. 2 is a perspective view of a detail;

Fig. 3 is a plan view of the tool, partly in longitudinal section;

Fig. 4: is a section transversely of the tool axis,

Fig. 5 is a view of one of the templets;

Fig. 6 is a view similar to Fig. 3 of a somewhat modified form of tool holder; and

Fig. 7 is an exploded detail view of parts shown in Fig. 6.

The burnishing tool is mounted near the end of a shaft 8 journaled in a frame 10 and driven through spiral gears from a vertical drive shaft 12. Slight axial move ment of the tool is desired to cause the burnishing action of the individual elements to overlap. This is accomplished by a cam d to the shaft 8 and having a groove roiler 16 rotatable on a pivot frame,

tea? is indicated generally and comprises a series of individuahwork en gaging elements arranged in series both longitudinally of the tool axis and circumferenti'ally thereof. The holder for the elements is constructed as followsz-Secured to the shaft 10 by a set screw is a hub 22 having a circular flange 24C to which is" secured a plurality of rods 26 extending parallel to the tool axis and arranged ina circular series. The rods are threaded, as indicatedat 28; in the'flange 24l'and have bracing collars 30 resting in recesses of the flange. A"second-hub"32 has an annular flange"34-carrying a series of hollow rods 36 parallel-to the'tool axis and arranged in a circular series corresponding tothe rods 26 the hollow rods 36 being designed to slip over"tl1 e--rods-26. Each rod 36 is threaded as indicated at 38 in the'flange g l and has abracing'"collar l-O' fitting in a recess-of the flange. Burmshmg element-s are sleeved on"'th e"' hollow rods' for pivotal movement anc'l'heldfloosely in place by nuts-4C2 upon the'endsofthe hollow'rods. The hub 32, flange 34, hollow rods and burnishing elements are detachable as a unit from the rods 26 if it is desired to replace the burnish ing elements with othersof a different kind or of a different width.

A series of Work engaging elements here in shown as burnishing-elements and are"pivoted on each 'of'the hollow rods;

The"burnishing elements are'in the form of c urvedlevers each having a rad-ia'lly'extending .armfi l'vvhich is' rounded and receivedloosely in one of a series of cam grooves SGeXtending along the surface of a cylindrical templet" 58. The templet is representative of onebf" a set of interchangeable "templets each designed to control the contour of th'c'tool for apar ticular heel, acting to vary the di'ameters of the burnishing surfaces ofthe respective series of elements which lie side by'side'in parallel planes. within the axis of thetooland is held on the expansible end of the shaft 10 by ascrew 'havinga conical surface. The templet is held from rotation relatively to thetool' by a pin 62 projecting'into a slot in The templet isinserted- The surfacesto move in or out with respect to the tool axis and thus change its diameter or contour. The lost motion provided by the looseconnection of the arms at with the cam grooves 56 allows theburnishing elements to be pressed in 'ardly bythe work against the action of centrifugal. force. These elements are standardized in one or more lengths to facilitate economical production and, Where two lengths are provided, they are arranged asishown with the longer and-shorten arms 52 and 50 alter netting, Thus the elements 52 will lagbehind the elements and thereby distribute the"blows*on the surface of the work and equalize the'resistance; ax is better distributed also If the tool is-used for burnishin ie is preferably rotated clockwise as seenind ig-el but for other purposes it may be drivenin the other direction;

plets each havingits cam groove'sshapedin a manner determined by the particular heel to beburmshed. Slnce the radially eX-- tending arms 5% are shorter than the work en 'a' ing arms the curvature of the grooves ofi may-be' made much flatter for a given tool 'contour'and thetemplet can-be made" small so th'at it will easily' enter the tool axis:

The tool is-heated at'botlr ends by elec trically heated plates which are yieldably' mounted to accommodate th e'oscillation of the tool. One heated plate 69, having-sockets to receiveheating units,'bears against the fiange24. I It is supportedby pins slidably mounted in the frame; there being springs 72-around' the redsto hold the plate tain' said plates 69 and 78 at temperatures higher than that'nf the tool so that heat will be ti 'ansferred to the tool by conduction.

Anysuitable wax applying and spreadingmechanism indicated generally at 82 may be employed.

ln'Figsydand' T there is shown a-slightly modified form of tool holder in u'hich the parts corresponding to the'other figures have the-same referencenumerals' with an additional The hub 122 has a flange 124 to which i secured a series of rods 126 thread ed as at l28'i1rthe flange and having a bracingicollar 130: A ring 134.- receives the ends of: the: rods -which are secured in place by nuts A templet 158 having cam grooves 156 of'any desired cont-our is insertedwithin theanis-of the tool 'andpositioned by a lug. 162ion the flange 124: enteringone of the grooves. The templet shown is adapted lVith each tool','1t1s intended to use a series of-te1n-' The to adjust the tool for burnishing a low straight heel having a rubber top lift. The templet, as appears in Fig. 7, has the inner portions of the grooves 156 formed to draw all the burnishing elements out of action exceptthose at the left which are of suflicient combined width to cover the particular part of the heel to be treated. In the form shown in Figs. 3 and 5, the templet is so formed as to Withdraw three of the burnishing elements from working position and hold the rest in a position that. will produce the contour desired for an excessively curved heel. It is expected that one form of tool will take care of all ordinary shapes of heels, but if the tool is to be used only on French heels or the like, it is preferable to back off or slant as at 53 (Fig. 3) those burnishing elements which would lie against the abrupt curve near the tread of such heels, thereby distributing the pressure over a greater area.

Preferably the templets are provided with mechanism for moving them endwise to se lect a sufficient number of burnishing elements to cover the heel and to draw the othersout of action. Furthermore, the templets can be moved during the operation of the tool as when operating on a. heel the height of which varies at the rear and front. Each templet has a groove 88 near its outer end engageable with pins extending from a bifurcated arm 90 (Fig. 6) on a hand lever 92 pivoted at 94 to the frame. The hand lever carries a hand screw 96 extending through an arcuate slot 98 in a fixed braclcet to hold the templet against axial movement when desired. When operating on the heel shown in Fig. 6, for example, the templet is locked. On the other hand, with a heel such as shown in Fig. 3 which is lower at the front than at the rear, the hand lever 92 can be swung to slide the templet and increase or dimenish the number of burnishing elements in action as the heel is turned. The effective length of the tool is thereby changed and although the surface contour, as determined by the templet, remains the same, its position is shifted along the tool.

Although the tool herein illustrated by way of example is a burnishing tool for heels, it is apparent that the invention in its broader aspects is not limited to burnishing nor to operating on heels.

Having thus described my invention, What I claim as newand desire to secure by Letters Patent of the United States is 1.. In a machine of the character described, afinishing tool comprising a pivotally mounted holder, a series of individual work engaging elements arranged on said. holder side by side in an axial direction, each of said elements being mounted on the holder for independent movement, and a templet for controlling the deflection of said elements from the axis of the holder to cause the tool as a whole to conform to a predetermined contour.

2, In a machine of the character described,

a. finishing tool comprising a holder having a series of individual work engaging elements each movably mounted on the holder for independent control, a. templet for controlling said elements to cause the tool as a whole to conform to a predetermined contour, and lost motion connections between said templet and said elements to allow limited movement of said elements for the purpose set forth.

In a machine of the character described, a burnishing tool comprising a. holder, a series of individual rubbing elements, each pivotally mounted on the holder, and means for adjusting said elements around their pivots to cause the tool as a whole to conform to a desired contour.

4. In a machine of the character described, a finishing tool comprising a pivotally mounted holder, a series of work engaging elements each pivotally mounted on the holder upon axes substantially parallel to the axis of the holder, and a templet engaging said pivotally mounted elements and constructed and arranged to change the configuration of the tool as a whole to cause it to conform to a contour determined by said templet.

5. In a machine of the character described, a finishing tool comprising a holder, a series of work engaging elements, each p?votall v mounted on the holder and having a controlling arm, and a templet engaging the controlling arms and constnicted and ar anged to cause the tool as a Wholeto conform to a desired contour.

6. In a machine of the character described, a burnishing tool comprising a holder, a series of rul'ibing elements, each pivotally mounted on the hold 7 and having an arm extending towards the tool axis, and a templet engaging the arms and having a predetermined relation to the contour of the work to cause the elements generally to assume said contour, said engagement of the templet with the arms having provision for lost motion to allow said rubbing elements to swing in and out to find the minor irregularities in the work.

7. In a machine of the character described, a burnishing tool having a circi'in'iferential series of hurnishing elementS and a templet for adjusting said elementstoward or from the tool axis to expand or contract the circumference of the burnishing surface.

S. In a machine of the character described, a burnishing tool comprising a holder having. a series of supports arranged in a circular series,a rubbing element movably mounted on eaclri'upport, said elements collectively forming a circumferential burnishing surface, and means for engaging and moving said elements on-the supports to expand or contract thecircumference of said circumferential surface.

9. In a machine of the character described, a burnishingtool comprising a holder having parallel pivot rods arranged in a c rcular series, a rubbing element pivotally mounted on each rod, said elements collec t vely forming a circumferential burn shing surface, and means for swinging said elements on the rods to expand or contract said surface.

10.. lna machine of the character described, a rotary l urnishing tool comprising a holder and a series of burnishing elements, each pivolal y mounted on the holder on axes substantially parallel to the longitudinal axis of the tool. said elements curving outwardly in spiral fashion. from said tool axis.

11. In a machine of the character described, a rotary tool comprising a holder and a series of Work eng ing elements, each pivotallvmounted on the holder. said ele mcntscurving outwardly in spiral fashion from the tool axis to form a circumferential Working surface, and means for adusting the positions of said elements on their pivotsto change the radius of said surface.

121m machine of the character described, a burnishing tool comprising individual rubbing elements arranged in series both longitud nally and circumferentially of the tool axis, and a templet for adusting therubbing elements toward or from the tool axis.

13. In. a machine of the character described, a burnishing tool comprising a holder having a series of parallel rods and a series of-curved rubbing arms pivotally mounted on each of said rods With the arms on adacent rods arranged in overlapping relation.

14. In a machine of the character described. a rotary tool comprising a holder having a series of supporting rods. :1 series of Work GDQBQlDgI elements movably mounted on each of said rods. and means for causing each series of elements to conform to any predetermined contour.

15. In a machine of the character de scribed. ahollow burnishing tool comprising a holder having a circular series of supporting rods. rubbing elements movably mounted on said rods, and a cylindrical templet extending through the tool axis and engaging said rubbing elements.

16. In a machine of the character dc-, scribed. a hollow burnishing tool comprising. a'holder having a circular series of supporting rods, .rubbing elements pivotally mounted on said rods and havingqradial projections, and a cylindrical templet extending through said-tool and having cam grooves for engaging said projections to control the position of the elements.

1'7. In a machine of the character described, a rotary tool having seriesof independently mounted Work engaging elements arranged in parallel planes, and a templet for va yingthe diameters of the series of elements in the respective planes to determine the contour of said tool.

18. In: a machine of the character de-v scribed, a rotary burnishing tool having a circular series of pivotally mounted Work engaging burnishingelements movable towards and from the axis of the tool, and a member for simultaneously controllingrall of said elements to change the diameter of the tool.

19. In a machine of the character do? scribed, a rotary burnishing tool having a plurality of adustable elements. rotatable about a common axis and forminga circumferential Work engagingsurface, and means Within the axis of the tool for con trollii'ig the longitudinal contour of said surface.

20.111 a machine of the character de scribed. a member. having a pluralit-y of parallel rods, means for rotatingsaid member, a second member having a plurality of hollow rods arranged to. enclose the rods of the first set, and Work engaging elements carried by said hollow rods.

21.121 a machine of the character described, a burnishing tool comprising a series of individual burnishing elements and means for holding said elements in a predetermined relation to conform approximately to thecurve of a heel, those elements at the more sharply curved part of the heel being slanted or backed off to avoid marking the heel.

22. in a machine of the character described, a burnishing tool comprising. a holder having a circular series of supporting rods, and rubbing elements of different lengths n'iovably mounted on each of said rods, the longer and shorter elements arranged in succession along the rods.

In a machine of the character described, a burnishingtool having a series of burnishing elements rotatable about a common axis, means for rotating the tool, and means for oscillatingthe tool in the line of its axis to cause the burnishing action of one element to overlap that of the next.

524:. In a machine of the character described, a burnishing tool having a plurality of burnishing elements in parallel planes, the burnishing elements in one plane arranged: to lag behind the elementsin the next plane, means for rotatingthe tool, and

means for oscillating the tool to cause the action of adjacent elements to overlap.

25. In a machine of the character described, a rotary tool having a series of individual work engaging elements, certain of said elements being mounted for movement from operative to inoperative position, and a templet for changing the length of the tool by withdrawing some of said elements from operative position.

26. 111 a machine of the character described, a rotary tool having a series of individual work engaging elements movable towards and from the axis of the tool, a tem plet for controlling the positions of said elements to determine the contour of said tool, and means for moving the templet during the rotation of the tool to change the operative length of the tool.

27. 1n a machine of the character described, a rotary tool having circular series of work engaging elements, each movable towards and from the axis of the tool, and means for moving some of said series of elements toward the axis of the tool to reduce the operative length of the tool.

28. In a machine of the character described, a rotary tool having a series of work engaging elements movable towards and hem the axis of the tool, means for controlling the positions of said elements to determine the surface contour of said tool, and means for causing said surface contour to shift its position along the tool during the rotation of the tool.

29. In a machine of the character described, a burnishing tool having a yieldable peripheral surface, and means for con- V tracting or expanding the circumference of some portions of said surface to vary the contour of the tool as a whole.

30. In a machine of the character described, a rotary tool mounted for oscillation along its axis of rotation, a heated member having a temperature higher than that of the tool, and means for supporting said heated member for movement parallel to the axis of rotation to maintain it in heat conducting contact with said tool as the latter rotates and oscillates.

31. In a machine of the character described, a rotar tool, means for rotating said tool and oscillating it along its axis of rotation, a heated plate constructed and arranged to transfer heat to said tool, means for supporting said plate slidably for movement in an axial direction, and resilient neans to hold it in contact with a surface of said tool normal to the axis thereof in order that the plate may be maintained in heat conducting relation to the tool as the latter rotates and oscillates.

in testimony whereof .l have signed my name to this specification.

GEORGE GODDU. 

